1030212421 has 4 divisors (see below), whose sum is σ = 1177385632. Its totient is φ = 883039212.

The previous prime is 1030212419. The next prime is 1030212431. The reversal of 1030212421 is 1242120301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1242120301 = 811 ⋅1531591.

It is a cyclic number.

It is not a de Polignac number, because 1030212421 - 2¹ = 1030212419 is a prime.

It is a super-2 number, since 2×1030212421² = 2122675264765362482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030212395 and 1030212404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030212431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73586595 + ... + 73586608.

It is an arithmetic number, because the mean of its divisors is an integer number (294346408).

Almost surely, 2^1030212421 is an apocalyptic number.

It is an amenable number.

1030212421 is a deficient number, since it is larger than the sum of its proper divisors (147173211).

1030212421 is an equidigital number, since it uses as much as digits as its factorization.

1030212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147173210.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1030212421 is about 32096.9222979400. The cubic root of 1030212421 is about 1009.9710546225.

Adding to 1030212421 its reverse (1242120301), we get a palindrome (2272332722).

The spelling of 1030212421 in words is "one billion, thirty million, two hundred twelve thousand, four hundred twenty-one".